Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

74HC643 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. 74HC643
Description  Octal bus transceiver; 3-state; true/inverting
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC643 Datasheet(HTML) 5 Page - NXP Semiconductors

  74HC643 Datasheet HTML 1Page - NXP Semiconductors 74HC643 Datasheet HTML 2Page - NXP Semiconductors 74HC643 Datasheet HTML 3Page - NXP Semiconductors 74HC643 Datasheet HTML 4Page - NXP Semiconductors 74HC643 Datasheet HTML 5Page - NXP Semiconductors 74HC643 Datasheet HTML 6Page - NXP Semiconductors  
Zoom Inzoom in Zoom Outzoom out
 5 / 6 page
background image
December 1990
5
Philips Semiconductors
Product specification
Octal bus transceiver; 3-state;
true/inverting
74HC/HCT643
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (
∆ICC) for a unit load of 1 is given in the family specifications.
To determine
∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL =50pF
INPUT
UNIT LOAD COEFFICIENT
An
Bn
OE
DIR
1.50
0.40
1.50
0.90
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
−40 to +85 −40 to +125
min.
typ.
max. min. max. min.
max.
tPHL/ tPLH
propagation delay
An to Bn;
inverting
10
20
25
30
ns
4.5
Fig.5
tPHL/ tPLH
propagation delay
Bn to An;
non-inverting (true)
13
23
29
35
ns
4.5
Fig.6
tPZH/ tPZL
3-state output enable time
OE, DIR to An;
OE, DIR to Bn
16
30
38
45
ns
4.5
Fig.7
tPHZ/ tPLZ
3-state output disable time
OE, DIR to An;
OE, DIR to Bn
17
30
38
45
ns
4.5
Fig.7
tTHL/ tTLH
output transition time
5
12
15
18
ns
4.5
Fig.5 and Fig.6


Html Pages

1  2  3  4  5  6 


Datasheet Download

Go To PDF Page

Related Electronics Part Number

Part No.DescriptionHtml ViewManufacturer
74HC640 Octal bus transceiver; 3-state; inverting 1  2  3  4  5  More NXP Semiconductors
74ALVC245 Octal bus transceiver; 3-state 1  2  3  4  5  More NXP Semiconductors
74HC242 Quad bus transceiver; 3-state; inverting 1  2  3  4  5  More NXP Semiconductors
74HC7245 Octal bus Schmitt-trigger transceiver; 3-state 1  2  3  4  5  More NXP Semiconductors
74AHC245 Octal bus transceiver; 3-state 1  2  3  4  5  More NXP Semiconductors
74HC648 Octal bus transceiver/register; 3-state; inverting 1  2  3  4  5  More NXP Semiconductors
74HC245 Octal bus transceiver; 3-state 1  2  3  4  5  More NXP Semiconductors
MC74VHC240 Octal Bus Buffer/Line Driver 1  2  3  4  5  More ON Semiconductor
74HC646 Octal bus transceiver/register; 3-state 1  2  3  4  5  More NXP Semiconductors
74LVT646 3.3V Octal bus transceiver/register 3-State 1  2  3  4  5  More NXP Semiconductors

Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn